factually
Index/Topics/Privacy Testing

Privacy Testing

PrivacyTests.org and EFF fingerprint tests are used to measure the effectiveness of private browsers, with results varying by configuration and update state.

Fact-Checks

2 results
Jan 27, 2026
Most Viewed

What measurable differences in browser fingerprinting resistance and tracking protection exist between IronFox, Tor Browser, Hardened Firefox, and Brave?

Measured tests and expert guides show clear, consistent differences: provides the strongest measurable fingerprinting resistance by design, while Brave and variants (LibreWolf/Mullvad/Arkenfox configu...

Jan 31, 2026

How does PrivacyTests.org evaluate browser fingerprinting and what does a 'pass' mean?

is an open-source project that runs an automated suite of in‑browser checks against major browsers to measure , including a set of tests; results are presented as pass/fail indicators for specific lea...